Quinoline Derivatives as NK-3 and NK-2 Antagonists
申请人:Farina Carlo
公开号:US20070015766A1
公开(公告)日:2007-01-18
Certain compounds of formula (I) below or a pharmaceutically acceptable salt or hydrate thereof:
wherein:
R
1
is H or alkyl;
R
2
is aryl, cycloalkyl or heteroaryl;
R
3
is H or C
1-3
alkyl, optionally substituted by one or more fluorines;
R
4
is H, R
8
NR
9
R
10
, R
11
R
13
or R
11
R
12
R
13
; or
R
5
is branched or linear alkyl, cycloalkyl, aryl, arylalkyl, or a single or fused ring aromatic heterocyclic group; a process for preparing such compounds, a pharmaceutical composition comprising such compounds and the use of such compounds and the use of such compounds and composition in medicine.
We report a mild and environmentally benign method for the synthesis of tertiary amines using alcohols as the alkylating reagents. Not only secondary amines such as piperazines but also amino acids and amino alcohols can be N-alkylated selectively. For N,O-benzyl protected amino alcohols, both N,O-de-benzylation and N-methylation were achieved in one-pot.